Factors affecting standardized milk and fat yields in Alpine goats
Title | Factors affecting standardized milk and fat yields in Alpine goats |
Publication Type | Journal Article |
Year of Publication | 1995 |
Authors | Browning, R, Leite-Browning, ML, Sahlu, T |
Journal | Small Ruminant Research |
Volume | 18 |
Issue | 2 |
Pagination | 173 - 178 |
Date Published | Jan-10-1995 |
ISSN | 09214488 |
Abstract | Records from 499 lactations of 220 Alpine does were evaluated to test lactation year, lactation number, and litter size effects on 305-day adjusted mature equivalent milk and fat yield was greater (P<0.01) in 1986 (968 kg) than in following years (range 777-845 kg). Fat yield was not influenced by lactation year. Positive (P<0.01)associations were found when phenotypic merits for lactation yield were regressed on birth year and generation. Lactation number affected (P<0.01) milk yields with production highest at second lactation (960 kg) and lowest at seventh lactation (634 kg). Does delivering single kids had lower (P<0.01) coefficient was computed (775 kg) than does delivering twins and triplets (834 and 903 kg, respectively). A positive (P<0.01) coefficient was computed (17.5 ± 4.5 kg litter weight) when milk yield was regressed on total litter weight. Fat yield was similarly affected (P<0.01)by lactation number and litter characteristics. Unique were results showing that litter size and litter weight had positive relationships with lactation yields in does despite the removal of kids at birth. |
URL | http://linkinghub.elsevier.com/retrieve/pii/0921448895007192 |
DOI | 10.1016/0921-4488(95)00719-2 |
Short Title | Small Ruminant Research |